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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.9, 2011³â, pp.711-720
SWAT-CUPÀ» ÀÌ¿ëÇÑ ´ëûȣ À¯¿ª Àå±â À¯Ãâ À¯·® º¸Á¤ ¹× °ËÁõ
( Flow Calibration and Validation of Daechung Lake Watershed, Korea Using SWAT-CUP )
ÀÌÀºÇü;¼­µ¿ÀÏ; (ÁÖ)¿¥Å¥ºò;Ãæ³²´ëÇб³ °ø°ú´ëÇРȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¿ë´ã´ï ÇÏ·ùºÎÅÍ ´ëû´ï»ó·ù±îÁö ÃÑ À¯¿ª¸éÀû 3108.29 $km^2$ À¯¿ªÀ» ´ë»óÀ¸·Î SWAT ¸ðµ¨À» Àû¿ëÇÏ¿© À¯ÃâÀ¯·®¸ðÀǸ¦ ½Ç½ÃÇϴµ¥ À־ÃÖÀûÀǸŰ³º¯¼ö¸¦ÃßÁ¤Çϴ¹æ¹ýÀ»º¸°íÇϰíÀÖ´Ù. SWAT ¸ðµ¨ÀÇ ¸ðÀǸ¦ À§Çؼ­´Â ¹æ´ëÇÑ ¾çÀÇ ¸Å°³º¯¼ö°¡ ¿ä±¸µÇ¸ç ÀÌ·¯ÇÑ ¸Å°³º¯¼öÀÇ ÃÖÀû°ªÀ» »êÁ¤ÇÏ´Â °ÍÀº ¾î·Á¿î ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â SWAT-CUP¿¡¼­ Á¦°øÇÏ´Â 4°¡Áö Åë°è ¾Ë°í¸®Áò Áß¿¡¼­ GLUE¿Í SUFI-2ÀÇ 2°¡Áö ³»ºÎ ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© °¢°¢ 2,000ȸÀÇ ¹Ýº¹°è»ê °á°ú¸¦ ÅëÇØ SWAT ¸ðµ¨À» ÃÖÀûÀ¸·Î º¸Á¤Çϱâ À§ÇÑ ¸Å°³º¯¼ö¸¦ »êÁ¤ÇϰíÀÚ ÇÏ¿´´Ù. SUFI-2 ¹× GLUE Àû¿ë°á°ú ¼±Á¤µÈ ¸Å°³º¯¼ö °ª¿¡ ÀÇÇÑ À¯Ãâ °á°ú´Â ½ÇÃø À¯·®°ª°ú ºñ±³ÇÏ¿´À» ¶§, NS (Nash-Sutcliffe) °ª°ú $R^2$°ªÀº °¢°¢, 0.87 ¹× 0.89 ¹üÀ§·Î °ÅÀÇ °°À¸¸ç µÎ °¡Áö ¹æ¹ý ¸ðµÎ ¸Å¿ì ¿ì¼öÇÑ ¸ðÀǰá°ú¸¦ ³ªÅ¸³»¾ú´Ù. RMSE, MSE °ª ¶ÇÇÑ °ÅÀÇ À¯»çÇÑ °ªÀ» ³ªÅ¸³»¾î µÎ ÇÁ·Î±×·¥ÀÇ ¼º´ÉÀº Â÷À̸¦ ³ªÅ¸³»Áö ¾ÊÀº °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. SWAT-CUP ÇÁ·Î±×·¥Àº ±¹³»¿¡¼­ ÇöÀç±îÁö Àû¿ë»ç·Ê°¡ ¸¹Áö ¾ÊÀ¸³ª, ¹æ´ëÇÑ ¸Å°³º¯¼ö¸¦ ÇÊ¿ä·Î Çϰí, º¸Á¤½Ã ¸¹Àº ½Ã°£°ú ¹Ýº¹ ÀÛ¾÷À» ÇÊ¿ä·Î ÇÏ´Â ¸ðµ¨À» º¸Á¤ÇÏ´Â °æ¿ì¿¡ ƯÈ÷ È¿°úÀûÀ¸·Î »ç¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÇ¸ç, ¸ðµ¨ »ç¿ëÀÌ Àͼ÷ÇÏÁö ¾Ê´Â °æ¿ì¿¡µµ À¯¿ëÇÏ°Ô »ç¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î º¸ÀδÙ.
SWAT (Soil and Water Assessment Tool) model was calibrated for the flow rate of the Deachung lake with a large area of 3108.29 $km^2$. Application of SWAT model requires significant number of input data and is prone to result in uncertainties due to errors in input data, model structure and model parameters. The SUFI-2 (Sequential Uncertainty Fitting Ver. 2) program and GLUE (Generalized Likelihood Uncertainty Estimation) program in SWAT-CUP (SWAT-Calibration and Uncertainty Program) are used to select the best parameters for SWAT model. Optimal combination of parameter values was determined through 2,000 iterative SWAT model runs. The Nash-Sutcliffe values and $R^2$ values were 0.87 and 0.89 respectively indicating both methods show good agreements with observed data successfully. RMSE and MSE values also showed similar results for both programs. It seems the SWAT-CUP has a great practical appeal for parameter optimization especially for large basin area and it also can be used for less experienced SWAT model users.
 
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À¯¿ª¸ðµ¨¸µ;ºÒÈ®½Ç¼º ºÐ¼®;´ëûȣ;SWAT;SWAT-CUP;watershed modeling;uncertainty analysis;daechung lake;GLUE;SUFI-2;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.9, 2011³â, pp.711-720
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201129349656506)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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